Senior Security Engineer, Microsoft Sentinel / Hybrid Onsite Liaison | WINTrio LLC
Role details
Job location
Tech stack
Job description
As a Senior Security Engineer, you will serve as the primary onsite security engineering liaison for a federal client's vSOC program. This role supports Microsoft Sentinel operations, Microsoft Defender tuning, log ingestion validation, telemetry gap identification, detection use case validation, vulnerability prioritization, patch governance coordination, and stakeholder engagement., * Serve as the primary technical liaison between the remote vSOC team and federal client stakeholders.
- Review Microsoft Sentinel log ingestion, monitoring coverage, dashboards, and detection content.
- Validate and tune detection use cases aligned to MITRE ATT&CK.
- Identify telemetry gaps across identity, endpoints, cloud, network, GitHub, SQL, VPN, Proofpoint, and backup tools.
- Support Microsoft Defender for Endpoint and Microsoft Defender for Identity tuning and operational validation.
- Coordinate remediation actions with client IRM staff and system owners.
- Support vulnerability prioritization, patch governance validation, and monthly remediation reporting.
- Validate log routing, normalization, and pipeline health, including Cribl or similar tools where applicable.
- Provide technical support during security events, incident escalation, purple team exercises, and continuity tests.
- Help mature the client's Sentinel and Defender deployment from current-state operations to an optimized security monitoring capability.
Requirements
Do you have experience in Stakeholder management?, Do you have a Bachelor's degree?, Work Authorization: US Citizen or Green Card preferred; must be able to pass federal background and suitability requirements., * Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or related field.
- 8+ years of cybersecurity engineering, SOC engineering, detection engineering, or SIEM operations experience.
- Strong hands-on experience with Microsoft Sentinel, KQL, workbooks, analytics rules, incidents, watchlists, and automation rules.
- Strong experience with Microsoft Defender for Endpoint and Microsoft Defender for Identity.
- Experience with AWS log ingestion, CloudTrail, VPC Flow Logs, IAM monitoring, and cloud telemetry.
- Experience supporting federal security requirements, sensitive data environments, and audit-ready documentation.
- Ability to work directly with client technical and executive stakeholders.
Tools and Preferred Qualifications:
- Microsoft Sentinel, Defender XDR, MDE, MDI, Entra ID, Azure Government, AWS Commercial.
- KQL, Logic Apps, Azure Monitor, Log Analytics, GitHub, SQL Server auditing.
- Cisco, Checkpoint, iBoss, VPN, Proofpoint TAP/TRAP, Veeam, WinCollect, Cribl.
- Certifications preferred: CISSP, GCIH, GCIA, CEH, Microsoft Security Operations Analyst, SC-200, AZ-500, AWS Security Specialty.
Benefits & conditions
Pulled from the full job description
- 401(k)
- Health insurance
- Paid time off
- Vision insurance
- Health savings account
- Dental insurance
- Flexible spending account, * Medical, Dental, and Vision Insurance
- FSA & HSA options
- 401(k) Retirement Plan
- Annual Bonus & Profit Sharing
- Paid Time Off (PTO) & Vacation
- Employee Assistance Program (EAP)
- Life & Disability Insurance
Why Join WINTrio?
WINTrio is a people-first, employee-driven organization. We offer opportunities to grow across emerging technologies, program management, and business development while working on high-impact federal initiatives.